Baruah, Prafulla. bichitra gyanar katha / Prafulla Baruah - Guwahati : Assam publishing company , 2017. - 139p. ; 22cm. From class III- VIII. ISBN: 8186384049 Subjects--Topical Terms: General knowledge.Assamese.Indian G K .School G K.Assamese G K . Dewey Class. No.: 030 BOR